Data-Planet (UW Only)
A great first stop for almost any topic. In Data-Planet you will find economic, demographic, international, education, and more statistical datasets. And check out some of Data-Planet's excellent guides.
SimplyAnalytics (UW Only)
SimplyMap is a statistics and data tool with a map interface. Fantastic source for demographics, consumer information, business data, and market data. Create cool maps and visualizations.
Social Explorer (UW Only)
Social Explorer is another data tool with a map interface. Great source for US Census data tables. Social Explorer also has very nice visualization tools -you can even create a map based presentation.
U.S. Political Stats (UW Only)
Want to know which counties across the country voted Republican? Want to know the voting record of your congressional representatives? U.S. Political Stats is a great place for political information, and it has some handy visualization tools, too!
US Census QuickFacts
QuickFacts is a great place to start looking for population and demographic data for states, counties, cities, and towns with population over 5,000. For Census data on more varied geography (census tracts, zip codes), use SimplyMap, Social Explorer, or the American Factfinder.
DataUSA.io
DataUSA.io is a collaboration by the MIT Media Lab and Deliotte to visualize numerous US government sources of data. It is free and fun to browse through! Search by state, city, county, industry, occupations, or education. Check it out!
StatsAmerica
Statistical profiles of states, counties, & towns. Easy to use comparison tool.
ProQuest Statistical Insight
You never know what you'll find in Statistical Insight. The nice thing about PQ Stat Insight is that it aggregates data from many different sources from all kinds of different spheres. Always worth a try.